the amount of the decrease (if any) in the aggregate amount of credits determined under subtitle A which results from a difference between the taxpayer’s treatment of an item to which this section applies (as shown on the taxpayer’s return of tax) and the proper tax treatment of such item.

“(a)In General.—The Commissioner of Internal Revenue, in consultation with the Secretary of the Treasury, shall submit to the Committee on Ways and Means of the House of Representatives and the Committee on Finance of the Senate an annual report on the penalties assessed by the Internal Revenue Service during the preceding year under each of the following provisions of the Internal Revenue Code of 1986: